Why JSJ’s Diesel Engines Cost More
Short answer: because we do the work up front. We open the engine, test it, document it, and ship it complete—so your install is faster and your downtime is lower.
Inspect: “Open the Top and Bottom”
- Top end off: cam and rocker condition, injector tips, valve train wear, carbon patterns.
- Bottom end off: bearings, cylinder walls, ring witness marks, thrust movement.
- Leak paths: gaskets, front/rear covers, oil cooler housing, turbo drain, EGR interfaces.
Test: Oil, Coolant, Compression, Stress
- Oil sample: fuel dilution, silica, wear metals; coolant test for combustion gases and pH.
- Compression / balance: hot idle trims and contribution; rail pressure tracking where applicable.
- Stress run: load the engine and log temps/pressures; confirm VGT/EGR actuations (when present).
Prove: Run-Test On Video
- Every engine is run-tested on video. You see oil pressure, smoke quality, and response.
- We document blow-by, boost (where available), and visible leaks.
Deliver: Complete & Drop-In Ready
- Complete in most cases: accessories as shown, configured for a drop-in to reduce install time.
- Cleaned & detail painted for leak detection and serviceability.
- No core return: you keep your old engine for parts/interchange—zero core games.
Stand Behind It: Warranty & Support
- We answer the phone. If there’s an issue, we actually respond and work the problem.
- We only ship engines we’re willing to put the JSJ Diesel warranty and name on.
